Building.



3. s, LANDON. BUILDING. APPLIOATIOH FILED JUNE 19, 1909.

Patented July 1, 1913 2 SHEETS-SHEET l.

' outrun sea 2 ra ruu'r curios.

SAMUEL s. LAimoN, 0E EAST ORANGE, NEW JEE'sEY.

" BUILDING.

4 specification of Le'tters P ateut Patented July 1-, 1913. v

v Application filed June 19,1909. Serial No. 503,118.

To ZZZ whom it marl l concern Be it known that.I,..SA.MU'EL SpLANDO N, of EastOrang'e, New Jersey, have invented certain lniproveinentsiin "Buildings, ofwhich the following description, inconnection with the accompanying drawings, is a specification, like letters on the drawings designatinglike parts. I, This invention relates to buildings. and

more parti. ularly to structures of the nature of skylights, and is of special utility-When embodied in structures of glass-and metal used; in train-sheds, green-houses, andsimie.

lar' roofs, walls r floors, having large areas of transparent or translucent mater al; al

tlioulghbyg the use ofthe. term skylight I" do not intencl any' tc'chnical'significance but contemplate the use ofniy iniproyeinents" in i "any field for which they are adapted by their nature. j

An important ,of" II1y invention is to -.provicle a supporting structure ofsuch construction and arrangement as to-a'fi'ord an uirusual degree ofstrength with a rela tively low cross area offthe supporting he hers, so that the weight of the structure illbe low, itiwill present a minimum obstruction to light, andvv ll be less expens vev 1n cost: of material thanthe structures hereto-- time used generally for analogous;purposes I Another important objectof my invention .is toprovide a broad bearing fort-lie edges of the plates of glassconstituting the lights,

or of such otherg'structural devices as may take the place of plat'es'of glass, and'to pro-,

videuneans for cushioning those members so as to avoid their fracture.

M y improvements include also provision for cappmg devices above the-edges of the plates constructed and. arranged to freceive v the weight of: the \vorkmen and distribute it so thut 'ivorlmien may Walk along the skylight without danger of fracture of theglass and without danger of: bending orotherwlse harming the capping device. I p v Still another ob]ect of notable importance,

comprised in the purview o-iiniy improvemerits, is the provision of means by wh ch the skylight structure can be .built up from a a relatively low portion of the roofwithout the use oi 'scaii olding, falseqi'ork, orother edyentitious supporting means, the lower Among other ob eots of myinvention may be mentioned fn'ovel means for constructing skylights .in which the plates of glass or similar roofing niembcrslfollow a shingle or" overlapping mode of construction; also novel universal means for securing the various members of the supporting structure to each other; and a novel device for collectingand disposing of the condensate; also eaves- -troughs of 'improved- .construction and arra-ngement; and 'a novel bracket or stop to be engaged by the ea'vesend of the lights, to

hold the latter in'placer Sometimes the Work f drillingstiuctural steel, preparatory to installing, sky-lights oooupiesnionths, andtofeliniinate this tedious and expensive delayfis an iinportant ob5 Jject of my invention, which obviates any necessity for boltingthe skylight members "to the steel structure in any Waywhatsoever,

taking advantage of the fact that the structural steel members furnished ,to-day on a fabrioated building 1 a'liord siifiicient detail to enable the erectorto secure a puttyless skylight inplaoefwitl iout the use of bolts, nuts, rivets, oriany such method of fastening, which requires skilled workmanship and is a hazardousundertaking. Accord ,-ingly, I have provided: as-the, principal structural unit of; my improved-skylight, a main bearing member, such as an. astragal, which lends itself to simple,- permanent and substantial union tost/ructural steel by the use in combination therewith of a universal fastening member-taking preferably the form of" a yoke, asthe xl'att'ercan be readily hitched upon thefia ngesof purlins, and allows-the a'st rag'als' t'o 'b'e-put- 1n age very rapidly,- these afterwardjbe'ing. lined up and spaced ofireadyto1eceive the glass,

and Ithe yoke joint allowingv.Eor-eiqiansionf and contraction, (of both the structure. and

the astragal iitself; [ll-hey 'alsoia'ot, as a; per-*1 manent: scaffolding, uponwhich the astra-;.

'g'zilsof -the 'in t erineliatepanels can be laid into place as quickly; and rapidly as thosein th'e lowerpanels; For this. reasomil "prefer:

also to provide the main bearing, member with a particular design of housing which presents a smooth upper surface to ntact with the glass, allowing it to be Shlftcd. into place, a very desirable feature in glazing.

To eliminate leakage through the joints and thus to obviate any cause for the use of gutters, which have hitherto been considered necessary, I prefer to provide a sealing strip of metallic insertion or sheet metal such as lead, which 15 laid upon the glass and in accordance with my invention, extends across from the edge of one light of glass to and ability to withstand abuse,--an'd which -bites into the lead strip or 'metallic insertion, this contact preventing the wings of the cap from spreading, and at the same time making a flexible water-ti 'ht connec tion between the aforesaid cap and metallic foundation,

repairs by reason of the breakage of insertion or packing.

I believe myself to be the first to provide a sealing strip extending across from one light of glass to the'other, and'this in connection with my novel cushion insures the permanency of the puttyless skylight absoliitely, if the physical conditions are prop-' erly'met, and excludes the necessity for any lass. In order to render it unnecessary to extend the astragal of this skylightbeyond the curb or point'of the structure upon which the astragal has its bearing and permanent I prefer ,to' provide a suitable bracket, which may be attached tothis member and extend beyond the eaves, inorder to allow'the' glassto have apermanent overhang, which is controlled by this eaves check, and adds greatly to the appearance of the skylight.

- astragals at the curb, I make it possible to use a continuous eaves gutter, free from the cut-out spaces which have'been necessary with such'puttyless skylights of the past,-

to clearthe bars, which have been allowed.

to extend over the eaves to support the glass,- Of similar importancein the saving of material is my improved shingle type ,of joint between the neighboring panels in ascending series, my improvements comprising chiefly the arrangement of the astragals 'so what beyond the upper margin of those in the panel next below and are Supported that the bars of a higher panel extend some- .therefromby suitable supports such as chairs near the upper extremities of the lower bars, and a continuous eaves gutter By thus terminating the i can be run along under the overhang of the upper panel, extending downto the lower for buying special shapes, and by providing loose fittin assemblin bolts with knurled .nuts, the astragals can be placed very readily and quickly and I make it unnecessary for the workman to carry any tools whatsoever upon the structiue after the glass has been placed, the knurled nuts allowing him to screw the caps down into place with his fingers, amode of adjustment which is far superior to the use of any tool held in the hand, and expedites he work advantageously.

The shop costs in preparing the material for my improved structure have been cut considerably by the fact that all the neces sary assembling holes in the several astragal members, including the main bearing member, the housing or retaining member, the sealing strip and the cap, are all punched through the horizontal portions of the astragal. All of these holes can be punched in a gang punch with one cperaticrt The cap may bc'fashioned in the machine with one operation. The sealing strip may punched "and fashioned in one operation regardless of its length. The eaves gutters, being of permanent design, also can be fashioned with; one operation, using suitable tools which are found in themarket to-day.

My improved, skylight can be easily and quickly. put iii-place, covering up the building and allowing the workmen to plaster as soon as the side walls and roof are completed, for the assembled astragals are light to handleand easy to secure permanently in adjusted position, assuring a tight, stable skylight even when the structural steel ofthe building upon which it lies is badly warped and twisted, an achievement which has been impossible in puttyle'ss skylights using existing types of butt joints or lap joints. The-various features of my invention will be illustrated and described fully in the accompanying drawings and specifications and pointed out in the claims.

In the drawings Figure 1 is a view' in side elevation, partly in. vertical section, ofa sky-light int-heconstruction of which my improvements have been embodied; and F 1g. 1 1s a vlewlthereof in front elevation; Fig; 2 is a fragmentary view m vertical sectionon enlarged scale similar to Fig. 1; Fig. 3 is a transverse vertical section on the line X X Fig. 2, looking from right to left; Figa is a fragmentary, detail view in perspective of the main longitudinal bearing member; Fig. 5 is a similar view of the conits of my improved shingle aoeaaai densate gutter. and retaining member; Fig. 6 1s a view in perspective of one of the brackets; Fig. 7 is a similar fragmentary viewof a portion of the sealing strip; and Flg. 8 of the cap strip, forming together a weather strip; Figs. 9 and 10 are similar fragmentary views of the eaves gutters; Fig. 11 1s a View taken on the line X --X 'Fig. 2 looking from left to right Fig. 12 is a view similar to Fig. 2 of a modified form of structure. Fig. 13 is a fragmentary, detail view, in perspective, of a portion of the cushion member; Fig. 14 is a similar view of a modified form of sealing strip; Fig. 15 is a view in perspective of a yoke member; and Fig. 16 is a similar view of a chair I member.

In the embodiment of my invention selected for illustration and description to enable ready and complete understanding of my improvements, the part designated by the'referencenumeral 1 is the main longitudinal member of the astragal of a skylight, this being selected on account of the large numbers of skylights used and for which my invention is particularly available, so that 1 use hereinafter the expression astragal to denote the assembled supporting unit although. I do not intend by that ex- 'iression to limit the use of such a member for the technical purpose of an astragal in the sense of a skylight member inclined to the horizontal, nor do I intend to convey any other technical limitation ordinarily signified by the expression.

The member 1' may be of any suitable and convenient material and form, but I prefer to make. itof a metal channel bar having the cross section of an inverted U and com-v posed of structural steel, because by locating the bar with its horizontal web 2 uppermost I provide a broad bearing for the skylight members 3 and a convenient and accessible seat; for the bolts 4 and other connecting devices used to secure together the several members forming the astragal; such an arrangement making possible the use of relatively short bolts, readily seen upon reference to Fig. 3.

In accordance with an important featureof my invention I providemeans by which the astra'gal can be readily placed in posit-ion upon the main support of the skylight without the necessity for scaffolding. The means for accomplishing this emplacement of the astragal may take any convenient form, but I prefer to provide devices which can be attached to the principal member 1 of the astragal-before it is takento the roof, so that'as much as possible of the work of assemblage can be accomplished in'the sliljp, where it can be done with greatest econbti: speed and accuracy, the assemblage of'tll se parts being especially difiicult at the great altitudes common in the. conetc., as will be most suitable and struction of train sheds and other buildings where skylights of this type are employed. I have illustrated such a device at 5, (best seen in Figs. 2 and '15,) which designates a hook-shaped yoke having the general shape of an inverted U (see Fig. 3)with its closed end extending upward within the member 1, to which it is secured suitably as by a bolt 11 (see Fig. 2) passingthrough an aperture 400, which may be of suitable size and shape to permit adjustment relatively to the bolt 11, as indicated in Fig.- 2, while the free ends or forks G of the yoke' are preferably extended at an angleto the body of the yoke, sothat by grasping the astragal and lifting it above the roof-bean1 or purlin 7 commonly provided for a lower curb surrounding the opening to be covered by the skylight, and havmg usually a flange 8, the yoke forks 6 will pass below the heel of the flange, and when the bolt 11 has been firmly'set will clamp the member 1 to the upper surface of the f ange. This can be accomplished by a workman standing firmly upon the main portion of the roof, and when he has installed one or more of the members 1, the

latter constitute means by which the workman can gain access to the next or intermediate panel of. the skylight. Preferably a similar yoke or device 5 will be provided near the upper end of each astragal member 1 to hook over the flange of the next higher intermediate purlin 70, serving the same purpose and in the same manner as the yoke 5 already described.

The arrangement of members 1 just described can be repeated and continued to any extent desired, in order to form a skylight of the desired length, and having also as many panels in height as required by the exigencies of the particular installations, so

that, any area can be covered by multiplying the number of astragals.

Any convenient and suitable mode of arrangement at thejoints between the panels may be adopted, andas one such arrangement I have shown in Figs. 1 to 3 an overlapping joint or shingle type of structufe embodied in a skylight'havlng two panels or multiple units (as shown in F ig.-1 in transverse section) on each side of the skylight, the lower panel being that already described while the second panel is virtually a repetition of the structure just described, the member 1 being secured to the lower panel preferably, by any suitable and convenient means, which takes the form in ,the instance illustrated of a chair 9, consisting of a hollow square of metal secured at 10 to the member 1 of the lower panel as by a rivet or bolt 11, and standingiit a height suiii-' cient to hold the member 1 of 'the intermediate panel so that'it will support the lights 3 of the latter panel. Any suitable means parts of the nslragnl whirh i will now deerably wit-l in an upwarderrljen Learner may be provided to secure she members 1 of remity 0:? he socket to hold the'lafier down the intermediate panel to the ehinrs 9, as i in place, preventing any rencleney or 'the for example, bolts passingupwa dipn'ough brnclnt to tilt under the weight 0:; ti i an aperture 40, of suitable eonl'our and slice, at :is lower end, which may thus he sure 1n the u )er cross iece of the chair and extended to 3130' act in the form of an ever-- through the horizonghl web 2 of the member 1, above which they/proper to serve is eonneetln and reininn members for the olher scribe in detail.

In accordance with my invention i prefer to place upon the horizontal web 2 the main longitudinal member of nslregel a, cushion 12 which may be of any suiruble material, but which'for lhe sake o'l peri enence, fireproof quality und proper ioning effect I prefer form of ous strip of magnesia which the bolls are pus. priate infer 'ais. Upon {hi 7 light"; 3 which use he of any ui'uh te such as gh and of w be any suilnble and (*imYOi there being shown in rho drmri between each rwo neighboring lights being laid with i'huir same plane.

ll'illilulll'.

strip or seal hetween the this may hare devised novel fern! of weather strip and .1 whiel prefer to utilize as shown in l A to 23 and in 7 and S, and best Seen in '3, it s rather strip coinprisin 'lv pri n13 rl l metal (1111 0315 strip 20 of sn1..;a ile QllCll lend lhroug'h which may pen the boh'fs whey are ,l n'eier, a cup Sill'lp 21 is cornhm with l'ho e-crip 520, this (up strip heir cl suil'nhle: inn and held in place by U menus such in; the uuls 1:3

nwordunue wiih 2r oi my invention l wiih lz lernl whirh may I l prefe' to form the cross sex-l ion the shape of I prefer lo inlcrpose between the lights :i'rh llt apex elighlly flzlliiiilli i. and (he ruhhiun 1:5 n innnihvr l2; F-fil \'ll1 in nuts .3. he side \lll protect the cushionfor which pin-nu;- ii i nmnged preiienh preferably is formed of n cen iinn i inshle the ileum: of suitable male izil, such as copper an i ii lie lewer edge may be, and preferubl will he (mush-ruled unlit be spread but 1111- and er hugged o afford (see hig ll and l oi flu: nuts; or on 21 gutter 14; on 'e-L oh. side of lilo ne'lri' vnrinnm or other receive, collect and curry 0- upon lhe can from the lower surface of ii 3 l strip having 2' l ll'lll this end the strip l3 nnule m rd QMi JEXgQ n lint sl rig; width to permit its lateral :nnrg i such as shown in bent first downward. suhstnniinllg; Fig; IE in i a s rip of lead 200 r with the side w: of the niemhcr l ered with rubbq 01, with marginal i'ilirv. outward at an angle in lh a By this form of cnnsrnction I provide a Side and hen upward iii ii very strung and permanent weather-5:; in

thus ('onstrurted the con serve RS reruining walla w' cushion 12 is conlimd in tected from the roiulenSnle in t'ure, this being- :1 novel and iu mrhzn' ture of my improved derive,

The lights or oiher members i} inn :1 held from sliding" downward :ibl nun convenient nun able device for ihis pin-3m a novel bracket or stop 1- ha ing 1 16 arranged to lie above the mun ing 130 of the slrip 1 bore llllQlKlE-lll-t'rl between the neighboring edges le in mg prcfern iililiiiELl and arranged in witl sir-nine le il in w. i-rh. these )eiriallv in ril much 1 during; the cleaning t riders, snow, etc, It w' 3 weather strip i ms mmnhers, which may e'drz 'ntn island the J such expensive additions cell springs and extra treads for the wnrimnm to w nlk p m. V i l oi'nhinuiion of the 4.3),(11 the marginal fijril ,uietullie ifnseiu on ll! H nges, serves; in ingn-r Contact 'of each edge of the lead 20 with the upper face 01% meinh less of the irregularity 'of the gl material forming chelight er 0 uling the weight in uozrfi'f heneeem member,

' and illustrated is of extremely light, strong the purlins and compact construction, permitting the maximum quantity of light to pass, and stillaiiording all necessary strength of support to the lights. r

. Where the skylight is formed of a plurality of panels on each side of a medial ridge, the joint at the arch may be efi'ected in any suitable manner, and in Fig. 1 I have shown the upper lights 3 as surmounted by a simple cap strip 25 audit will be noted that the purlins 700 are of the same size as 7 and 70 so that to hold them at a proper level I have illustrated angle bars 701 secured in any suitable manner as by rivets 7 02. upon the'cross beams 703 of the skylight, suitable means as bolts or rivets 704 being provided to secure the purliiis 700 to the angle bars 701.

Along the horizontal joint between each panel, when constructed as above described, I preferto provide a trough 20, which may 'be of any suitable and convenient form to seal the jointp andl have devised a novel form of such trough suitable for this purpose, the same being illustrated in Figs. 2 and 9. This trough is formed, in the lil' stance illustrated, of an integral, continuous strip of metal having an uprightportion with flanges 27 and 28 at the bottom and top respectively to lie upon the horizontal web members 2 in position to receive the drip from the gutters 14, near the upper end of the lower members'l and extending up to the lights or members 3 'of the next higher panel, while an ofisct portion 29 presented rearwardlyand downwardly to rest along the tops of the caps 21, thus sealing the horizontal joints effectively.

A lower eave gutter 30 is shown in Figs.

2land 10, having an upright portion with.

top and bottom .fianges 31 and 32, respectively occupying Iels,

the positions illustrated in Fig.- 2. Drain holes 300 may be provided.

Passing now to Fig. therein illustrated embodies a modified form of lap joint between the paninain longitudinal memwhich may be in cross section substantially of the shape of an in- 101' designates the verted U is shown as otl'set at so that the upper light 103 projects naturally above the lower light 103, and the bolts 10 1 are secured respectively to the horizontal web portions 102, from which they extend upward through the cushion strips 120, the lights 103 and the weather strips 121,

above which are provided retaining nuts 12, the structure. somewhatand in this figure the reference numeral tending away 122, these parts corresponding in function and essential respects with similar members already described and bearing the reference numerals 1, 2, 3, 4, 20, 21, and 22'. r

The reference numeral 11 1 designates condensate gutters, similar to those mun.

bored 14, and the numeral 220 designates a none, of magnesia quilting interposed be tween the lower lights 103 and the overlap ping lowermost edge of the nexthigher lights 103, he lower and-downward edges of the higher panel resting against the cap transverse packing strip, preferably ccntin 121 of the next lower panel, which may be over-lapped slightly by the nexthigher cap 121.

-Having illustrated and described my in fully and suitable means for will he unvention. thus carrying the same into efiect, it

derstood that I do not limit myself to the.

specific materials and constructional forms selected for illustration and description, nor

- in general otherwise thanas set forth in the claims read in connection with this specification.

\Vhat I claim and desire to secure by Let ters Patent is:

1. In a device of the class described; a main bearing member; a cushion member resting thereagainst; a retaining member embracing said cushion and the part of said bearing member against which said cushion rests, and presenting a bearing surface to receive the structural members to be en-. gaged with said device, such'as lights of 1 glass; and a weather strip to extend across the joint between said structural members.

2. In adevice of the class described; a main bearing-member having a substantially flat bearing-surface extended along the region of juncture between the strue tural members to be engaged with said vice; a cushionanember substantially coextensive with,- and. resting upon said bearing-surface; and aretaining member also substantially coextensive with said bearing-surface, said retaining member be ing constructed and arranged to be engaged with the neighboring margins of said tural members, spanning the joint therebetween and having an extension to enter sait joint and serve as an abut-menttor the tipposed edges of said structural members, said retaining member having also a portion errfroin the region of contact. with one of said structural members to serve as a moisture-directing-member and as re vtaiiiing and protecting means for said cusli' ion and main bcaringmember respectively.

3. In a device of main bearing-member having a substantially flat bearing-surface extended along the region of juncture between the structural members to be engaged with said device; a cushion-member substantially cothe class described; a

extensive with, and resting upon, said bearing-surface; and a retaining member also substantially co-extenslve with said bearing surface, said retaining member being con structed and arranged to be engaged With the neighboring margins of said structural members, spanning the joint t-herebetwe'en and having an extension to enter said joint and serve as an abutment for the opposed edges of said structural members, saidretaining member having also portions eX-. tending away from the region of contact with said structural members to serve as a moisture-directing-means and as retaining and protecting-means for said cushionand main bearinganemher respectively.

4'. In a device ot the class described; a main bearing-member having a substantially flat bearing-surface extended along the i 'in ct juncture letween the struc tural members to be engaged with said device; a eusiion-niember substantially eoextensive with, and resting upon, said bearing-surface; and a retaining member also substantially co-cxtensive with said bearingsurtace, said retaining member being constructed and'arranged to be engaged with the neighboring margins of said structural members, spanning the joint therebetween and having an extension to enter said joint and serve as an abutment for the opposed edges of said structural members, said retaining member having also a portion extending" away from the region of contact of said structural members to serve as mois ture-directingancans and as retaining and protectinganeans for said cushion and main bearing member respectively; and a eatherstrip to span said joint on the side opposite said main l'iewing-member, said weather-strip comprising a sealing-strip extending across said joint, and a capping strip having wings to engage said sealingstrip on each side of said joint.

5. In a device of the class described; a main bearing-member having a substantially flatbearing-surface extended alone; the region of juncture between the structural members to be engaged with said device; a. cushion-member substantially coextensive with, and upon, said bean ing-surface; and. a-i'etaining member also substantially coextensive with said bearingsurt'ace, said retaining member being con-- structed and arranged to be engaged with the ncighborlng margii'is of said structural members, spanning the joint thcrebe'tween and having an extension to enter said oint and serve as an abutment for the opposed edges of said structural members, said 'retaining member having" also a portion extending away from the region of contact with one of said stnuctural'members to serve as moisture-directing-means and as retaining and protecting-means for said cushion and main bearing-member respectively, and a member to hold said structural members against displacement lengthwise of said joint, said holding-member having a shank housed Within said extension of said retaining member within said joint.

6. In a device of the class described; a

main bearing-member having a substantially fiat bearingsurfiace extended along the rcgion of juncture between the structural members to be engaged with said device; a cushion-member substantially co-extensivc with, and resting upon, said bearing-surface; and a retaining member also substantially coextensive with said bearing-surface, said retaining member being constructed and arranged to be engaged with the neighboring margins of said structural members, spanning the joint therebctween and having an extension to enter said joint and serve as anabutment for the opposed edges of said structural members, said rctaining member having also a portion er t-endinp; away from the region of contact with one of said structural members to serve as a moisture-directingdneans and as retaining and protecting-means for said cushion and main bearing-member respectively, and a weather-strip to span said joint on the side opposite said main bearingmember, said weather-strip comprising a sealing-strip extending across said joint, and a capping strip having wings to engage said scaling-Strip on each side of said joint; said sealingstrip having marginal flanges to limit the lateral expansion of said wings; and a holdinganemhcr having a holdin" portion to be engaged with one of said structural members to prevent longitudinal displacement thereof, a shank portion housed within said extension of said retaining member in said joint; and a connecting-member transfixing said main bearing-member,cushion, retaining member, holding member and weather-ship, to secure said parts in assembled relation.

7. A device of the class described, such as an astran'al': said device comprising a main longitudinal bearing-member; a continuous cushion-strip extending lengthwise there upon; a metallic retaininn-member consisting' of a continuous strip of metal extend inn above said cushion, and having a downwardly extended retaining portion terinihating in a gutter on eachside of said main bearing-member; a sealing-strip having upwardly extending marginal flanges; a capping strip being in cross-section substantially of the shape of an inverted V; and bolts extending through said members,- and connecting same in assembled'relation; saidparts being constructed and arranged to receive suitable structural members, such'as .i

lights of glass between said retaining strip wesamm and said sealing strip, mid to hold theiu in 1 mhnsivd PUSHIOII; substantially as ie- 1 scribvii.

8. As'un fii'iiUiQ ofinunufm-im'e; a device i (if (in: (iflfih (itfifll'iiflkig comprising a iimin 1mu'ing-mvmhm'; mashiun-mvmhvrz a w tniuing-uwnihci' vunsti'iivicd and arranged to wiiiinv said (Htiiiml in pizutv (won said b. iug-uwmim'; :1 lmiding-nwnihel' in be 011- gugui with stnwtumi-inmiibm' such as a i lighl of glass to pim'viit muhviae iiiriplzuemvni of said sii'uciuizii-iiwmixm'g :1 sealing;

s i i member and a cupping and ti'Qad-nieiniwr to pruiw-L the joint. iwtwevn zuijzu-ent strum ilii'tlLillilliiiilri; n S naiviiing-ineinboi t0- zsQ- (:IHU said 1m!ring-mommim a suitable sup- 1 p011; and a bolt U'nimiixing and connecting mid nwmhurx; suissmuiinizv 31H diisvi'ihmi i 9. A structure of the class described; comprising a. pair of spaced and overlapping natmgni suuiimls; a pni'iin to support said h'UUi'iOIlS; a yoke arranged to engage and supported by said purlin, and to prevent disphu-miwntnf said 2154; "algal therefrom; a avpai'aieiy fm-mvd chair member intervmr iugr bvtwemi the m'ei'1:\pl )ing"5 portiens of said nsh'zigmi nwmbei's; and means to 0011: nevi adjmstnbly said chair and yoke to oppo site sides 01"; the lower asti'ugal member.

Hignod zit Yew York, in the county'and Maw of New York, this ihii'd day of June, iJUi).

S. LANDCPN.

QAMU EL ii'ii mosses i imcrxiitamciz. PHUVEWET, S; Ema Kuux. 

